A Two Dimensional Model to Apprehend the Dynamic Response of Shallow Buried Structures due to Impact Loading Related to Mechanical Landmine Clearing Operations

2012 ◽  
Vol 24 (6) ◽  
pp. 1005-1013
Author(s):  
Nuhansyah Sulaiman ◽  
◽  
Hiroshi Takahashi
Keyword(s):  
Mechanical Model ◽  
Soil Characteristics ◽  
Two Dimensional ◽  
Dimensional Model ◽  
Lateral Component ◽  
Buried Structures ◽  
Soil Medium ◽  
Proposed Model ◽  
Two Dimensional Model ◽  
Physical Phenomena

The study of buried structures under various burial conditions and loadings is incomplete and inconclusive owing to the various and peculiar applications. Mechanical mine clearing with mine flails is one example where the application features are distinct from other geo-mechanical applications. The response of structures in soil has been modeled using a dynamic model that considers the soil characteristics. Further refinement of the established model was conducted and validated in the first iteration of the model’s completion. The lateral component of the soil is now considered and factored in to study the buried structure’s response. This study showed that a simple yet comprehensive mechanical model may be used to study the responses of buried structures to surface impact loadings. The validity of the proposed model may demand a certain degree of further refinement to accommodate other loadings, buried structures, and burial conditions while considering all physical phenomena that occur in the soil medium before, during, and after loading.

MODEL OF MENTORING IN A NON-HUMANITARIAN UNIVERSITYTWO-DIMENSIONAL

2020 ◽  
pp. 71-77
Author(s):  
I.A. Mamayeva I.A. ◽  
Keyword(s):  
Extracurricular Activities ◽  
Two Dimensional ◽  
Dimensional Model ◽  
Proposed Model ◽  
Self Study ◽  
Two Dimensional Model ◽  
Activity Measures ◽  
Mentoring Practice ◽  
Methodological Principles ◽  
The University

Current urgent issues in highr education research include the adaptation of fi rst-year students to study activities at the university, the search for a model to form an environment that can help students to adapt more successfully to conditions when they needs to show such qualities as independence, an ability to organize their time, communication, an ability to learn and self-study. The paper presents a “two-dimensional model of mentoring”, in which relationships are built between mentored student (mentees, i.e. fi rst-year students) and mentor-students (senior students), as well as between student-mentors and the teachermentor. The conducted studies revealed a number of didactic features of the implementation of mentoring in a non-humanitarian university, namely: reliance on subject-subject relations between all interaction participants, special competences of a teachermentor, compulsory procedures that provide refl ection of activities, etc. The proposed “two-dimensional model of mentoring” specifi es the goals of interaction, organizational and activity measures in the practice of mentoring, formulates the methodological principles of mentoring, and clarifi es the implemented didactic approaches. The paper presents the tasks of the mentoring subjects, the conditions that ensure a more eff ective implementation of mentoring, and the main provisions of the mentoring practice. The approbation of the practical aspects of the proposed model has proved its eff ectiveness: more successful involvement of fi rstyear students in the extracurricular activities of the university and better learning outcomes. The authors show the expediency of using the proposed model for the development and implementation of mentoring practice in a non-humanitarian university

Commitment to pro- versus counter-attitudinal behavior and the dynamics of social representations

2002 ◽  
Vol 61 (1) ◽  
pp. 34-44 ◽  
Author(s):  
Eric Tafani ◽  
Lionel Souchet
Keyword(s):  
Higher Education ◽  
Social Representations ◽  
Cognitive Restructuring ◽  
Social Representation ◽  
Two Dimensional ◽  
Dimensional Model ◽  
Social Actions ◽  
The Social ◽  
Two Dimensional Model ◽  
Students Attitudes

This research uses the counter-attitudinal essay paradigm ( Janis & King, 1954 ) to test the effects of social actions on social representations. Thus, students wrote either a pro- or a counter-attitudinal essay on Higher Education. Three forms of counter-attitudinal essays were manipulated countering respectively a) students’ attitudes towards higher education; b) peripheral beliefs or c) central beliefs associated with this representation object. After writing the essay, students expressed their attitudes towards higher education and evaluated different beliefs associated with it. The structural status of these beliefs was also assessed by a “calling into question” test ( Flament, 1994a ). Results show that behavior challenging either an attitude or peripheral beliefs induces a rationalization process, giving rise to minor modifications of the representational field. These modifications are only on the social evaluative dimension of the social representation. On the other hand, when the behavior challenges central beliefs, the same rationalization process induces a cognitive restructuring of the representational field, i.e., a structural change in the representation. These results and their implications for the experimental study of representational dynamics are discussed with regard to the two-dimensional model of social representations ( Moliner, 1994 ) and rationalization theory ( Beauvois & Joule, 1996 ).

Pulse Antennas: Accurate Solution of Two-Dimensional Model Problems for Structures with Gratings as Dispersive Elements

2001 ◽  
Vol 55 (8) ◽  
pp. 14
Author(s):  
A. I. Vyazmitinova ◽  
V. L. Pazynin ◽  
Andrei Olegovich Perov ◽  
Yurii Konstantinovich Sirenko ◽  
H. Akdogan ◽  
...  
Keyword(s):  
Accurate Solution ◽  
Two Dimensional ◽  
Dimensional Model ◽  
Two Dimensional Model
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